Abstract:

The continuing increase of grid-connected wind turbines has brought huge challenges to the power system's wind power consumption. As a highly flexible electrical load, the data center has great potential for wind power consumption in the power grid. Therefore, this article proposes economic dispatch of microgrid considering data center and wind power uncertainty. Firstly, based on the hierarchical structure of the data center, a coupling model is established for the information layer and the power layer. Secondly, aiming at the uncertainty of wind power output, a microgrid economic dispatch model considering data center and wind power uncertainty is proposed. Finally, based on the dual theory and two-stage robust optimization algorithm, the dispatch model is transformed into a robust optimization model and solved using column and constraint generation (C&CG) and dual theory. The case study results show that the participation of data center in microgrid economic dispatch can effectively reduce operating costs and the system operators can flexibly adjust the uncertainty of wind power output according to demand.

Key words: data center, wind power uncertainty, economic dispatch of microgrid, robust optimization